Times Between Crimes

Published: January 25, 1987

To the Editor:

If Newgate Callendar had perused Martha Grimes's latest mystery, ''I Am the Only Running Footman'' (Dec. 28), more carefully he would have known that a span of only 10 months, rather than 10 years, separated the two murders. This is an error that would not have been tolerated even by the ineffectual Superintendent Racer. JEAN GUARINO Oak Park, Ill.